Found gas in oil

hammnitup

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Joined
Jun 7, 2010
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I have a 4.3 mpi mercruiser engine and we recently lost oil pressure after motor warmed up. We found out later that we have gas in the oil and pulled all six plugs. one plug was clean compared to the other plugs. would this be caused by a bad injector?
 

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: Found gas in oil

That or water. I have seen injectors stick open and they just keep dumping raw fuel into the cylinder. Engine runs horrible, and raw fuel out the exhaust.
Do a balance test on the injectors, that should tell the story.
 
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